Number of rooted identity trees with n nodes and exactly 7 subtrees from the root.
A227811
Number of rooted identity trees with n nodes and exactly 7 subtrees from the root.
Terms
- a(0) =3a(1) =20a(2) =88a(3) =334a(4) =1163a(5) =3756a(6) =11615a(7) =34655a(8) =100653a(9) =286033a(10) =798924a(11) =2199461a(12) =5983705a(13) =16115809a(14) =43036487a(15) =114089624a(16) =300554336a(17) =787451267a(18) =2053299653a(19) =5331645252a(20) =13793247146a(21) =35567344417a(22) =91447996464a(23) =234515163492a(24) =600012257027
External references
- oeis: A227811